Murata Single-channel Silicon-based ESD Protection Device (SMD TVS Transient Voltage Suppressor)

Official Name: LXES02TAA1-144, Murata LXES Series Silicon ESD Protection Diode / ESD SuppressorCommon Name: Ultra-small 0402 package ESD protection diode, 5V bidirectional TVS

Part number coding definition:LXES = ESD protection component;02 = package code;T = silicon material;AA1 = product revision;144 = specification suffix.

II. Complete Electrical Specifications

• Package: CSP 0402 (0.4mm×0.2mm ultra-miniature SMD), SMT mountable, supplied in tape & reel.

• Channel: Single-channel (1CH), bidirectional protection (diverts both positive and negative ESD surge).

• Rated Working Voltage (VRWM): 5.5V DC, designed for standard 5V circuits.

• Minimum Breakdown Voltage (VBR): 7V.

• Junction Capacitance (Cj): 5.0pF (medium capacitance, optimal for power lines; select sibling part LXES02TAA1-145 (0.35pF) for signal lines).

• ESD Rating: IEC61000-4-2 Level 4; Contact discharge: 8kV, Air discharge:15kV (top-tier industry standard).

• Response Time: <1ns, fast clamping for transient surge voltage.

• Operating Temperature: -40℃ ~ +85℃; Halogen-free & RoHS compliant.

• Leakage Current: nA level, negligible power consumption under normal operation.

III. Product Functions

• Discharge human-body static electricity and plug-in surge at PCB I/O and power pins to avoid breakdown damage on MCU, IC and USB chips.

• Bidirectional voltage clamping to restrict instantaneous high ESD voltage within safe range and protect downstream precision electronic components.

• 5pF low capacitance brings no adverse impact on low-frequency power circuits, prioritized for power rail ESD protection.

IV. Application Range

1. Consumer Electronics (Main Application)

• Smartphones, Bluetooth earbuds, smart bracelets, TWS charging cases: ESD protection for VBAT power and USB supply pins.

• Power banks, PD fast chargers, wireless chargers: Anti-surge protection on 5V input port during hot plugging.

• Set-top boxes, smart TVs, Bluetooth speakers: ESD safeguard at power input terminals.

2. Interface Circuits

USB2.0 power lines, DC-IN ports, button I/O pins.Note: For high-speed differential data lines, replace with LXES02TAA1-145 (0.35pF).

3. Industrial Control & Automotive Small Appliances

• Temperature control boards, sensor modules, small home appliances (humidifiers, facial cleansing devices): ESD protection on 5V power pins.

• In-vehicle car chargers and automotive mini instrument internal power protection.